BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

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Source: — Data Sufficiency |
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by ratindasgupta » Sun Aug 19, 2007 10:55 pm
The answer is E.

1) 30 students have brown hair. INSUFF

2) 20 students are male. INSUFFF

Combining 1 and 2, we still have no idea how many male students have brown hair. All 20 could have brown hair or none could have brown hair.
INSUFF
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